Document and Entity Information - shares
 6 Months Ended
Jun. 30, 2020
Aug. 12, 2020
Cover [Abstract]    
Entity Registrant Name Co-Diagnostics, Inc.  
Entity Central Index Key 0001692415  
Document Type 10-Q  
Document Period End Date Jun. 30, 2020  
Amendment Flag false  
Current Fiscal Year End Date --12-31  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Filer Category Non-accelerated Filer  
Entity Small Business true  
Entity Emerging Growth Company true  
Entity Ex Transition Period false  
Entity Shell Company false  
Entity Common Stock, Shares Outstanding   28,082,709
Document Fiscal Period Focus Q2  
Document Fiscal Year Focus 2020